{
  "version": "1.6",
  "auto_upgrade": false,
  "cache_mobile": true,
  "cache_logged_in": false,
  "cache_commenters": false,
  "cache_rest": true,
  "cache_priv": false,
  "cache_favicon": true,
  "cache_resources": true,
  "purge_on_upgrade": true,
  "purge_stale": true,
  "purge_post_on_new": true,
  "purge_archive_on_new": true,
  "css_minify": true,
  "css_combine": true,
  "js_minify": true,
  "js_combine": true,
  "html_minify": true,
  "css_http2": true,
  "js_http2": true,
  "img_optm": true,
  "img_webp": true,
  "img_lazyload": true,
  "localize_resources": true,
  "cdn_enabled": true,
  "cdn_url": "https://cdn.example.com",
  "heartbeat_control": true,
  "heartbeat_frontend": "60",
  "heartbeat_backend": "120"
}